Design of Absorbers Using Metamaterials Zeinab Fneich

Design of Absorbers Using Metamaterials Zeinab Fneich

Design of absorbers using metamaterials Zeinab Fneich To cite this version: Zeinab Fneich. Design of absorbers using metamaterials. Micro and nanotechnolo- gies/Microelectronics. Normandie Université; Université libanaise, 2020. English. NNT : 2020NORMR095. tel-03192631 HAL Id: tel-03192631 https://tel.archives-ouvertes.fr/tel-03192631 Submitted on 8 Apr 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. INTERNATIONAL COTUTELLE THESIS To obtain the doctorate degree Specialty (Applied Physics) Prepared at the Rouen University and the Lebanese University Design of Absorbers Using Metamaterials Presented by Zeinab FNEISH Thesis defended on (03-02-2020) before the jury composed of : Mr. Fabien NDAGIJIMANA Professor in the Grenoble University Reviewer Master of Conference /HDR Mrs. Sylvie BARANOWSKI Reviewer Lille University Research supervisor in Lebanese National Mr. Ghaleb FAOUR Examiner Center for Scientific Research (CNRS) Mr. Mohammed RAMDANI Professor at ESEO Examiner Instructor-Researcher /HDR Mr. Moncef KADI Supervisor ESIGELEC Professor in the Lebanese University IUT Mr. Mohammad RAMMAL Supervisor Saida Professor in the Lebanese University Mr. Jalal JOMAA Co-supervisor Branch I Associate Professor in the Lebanese Mr. Hussam AYAD Examinor University Branch I Thesis directed by Dr. Kadi MONCEF Rouen University Prof. Mohammad Rammal Lebanese University 1 | P a g e Table of Contents Acknowledgements ....................................................................................................................... 5 List of Publications ....................................................................................................................... 7 Abstract .......................................................................................................................................... 8 List of Figures ................................................................................................................................ 9 List of Tables ............................................................................................................................... 14 List of Abbreviations .................................................................................................................. 15 General introduction .................................................................................................................. 16 1. Chapter 1: State of the Art ..................................................................................................... 18 1.1 Introduction .................................................................................................................... 18 1.2 Categories of Main Industrial Absorber ......................................................................... 18 1.2.1 Dielectric Absorber ................................................................................................. 18 1.2.2 Structural Absorbers ............................................................................................... 19 1.2.3 Resonant Absorber .................................................................................................. 21 1.2.4 Magnetic Absorber.................................................................................................. 22 1.3 Anechoic Chamber ......................................................................................................... 22 1.3.1 Description of its Structure ..................................................................................... 22 1.3.2 Dimension VS Operating frequencies .................................................................... 23 1.3.3 Anechoic Chamber Disadvantages ........................................................................... 24 1.4 Metamaterial Absorber ................................................................................................... 24 1.4.1 Categories of Metamaterial Absorber ................................................................... 25 1.4.2 Broadening Ways ................................................................................................. 30 1.5 Conclusion ...................................................................................................................... 37 1.6 Reference ...................................................................................................................... 38 2. Chapter 2: Pyramidal Design Setup ...................................................................................... 44 2.1 Introduction .................................................................................................................... 44 2 | P a g e 2.2 Plasmonic Resonance Study........................................................................................... 45 2.2.1 Absorption Mechanism ........................................................................................... 45 2.2.2 Simulation Results .................................................................................................. 46 2.2.3 Conclusion .................................................................................................................... 51 2.3 Design of Pyramidal Absorber ....................................................................................... 52 2.4 Parametric Analysis........................................................................................................ 54 2.4.1 Geometrical parameters influence ........................................................................... 55 2.4.2 Material Properties Influence .................................................................................. 60 2.5 Curved Altitude Enhancing Factor .................................................................................. 63 2.7 Conclusion ....................................................................................................................... 66 2.8 Reference ......................................................................................................................... 67 3. Chapter 3: Activating Metamaterial to low frequency ....................................................... 69 3.1 Introduction ..................................................................................................................... 69 3.2 Resonant Frequency Equation ......................................................................................... 69 3.3 Material Properties .......................................................................................................... 70 3.3.1 Insertion of Water Substrate ................................................................................... 72 3.3.2 Encapsulated Water in a FR4 Coating ...................................................................... 74 3.3.3 Conclusion ................................................................................................................ 76 3.5 Minimal Surface Geometry ............................................................................................. 76 3.5.1 Rough Surface Effect .................................................................................................... 76 3.5.1 Helicoid Model ............................................................................................................. 81 3.6 Conclusion ....................................................................................................................... 85 3.7 Reference ......................................................................................................................... 86 4. Chapter 4: Design of Metamaterial Broadband Absorber ................................................. 88 4.1 Introduction ..................................................................................................................... 88 4.2 By Adding Layers ........................................................................................................... 89 4.2.1 Simulation Setup........................................................................................................... 89 4.2.2 Results and Discussion ................................................................................................. 90 4.3 By Combining Complementary Pyramids ...................................................................... 94 3 | P a g e 4.3.1 Simulation Setup........................................................................................................... 94 4.3.2 Results and Discussion ................................................................................................. 96 4.4 Enhanced Combined design ............................................................................................ 97 4.4.1 Simulation Setup........................................................................................................... 97 4.4.1 Results and discussions ................................................................................................ 97 4.5 “Heel and Heads”

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